1938. Barruelo. 13 year old Miguel believes that his father, a Republican miner, died at the Front. Then, unexpectedly, comes the news that he is in a prisoner camp close to Oviedo. His mother begs the boy to bring his father home so Miguel sets off to find him, accompanied by his inseparable dog, Greta. Miguel will travel hundreds of miles, crossing mountains that are home both to wolves and deserters, he will steal food, escape from the the Guardia Civil, fall in love, meet people who have lost everything, become a man and witness with his own eyes the consequences of war.